US20140167321A1 - Method to warm plastic side of mold - Google Patents
Method to warm plastic side of mold Download PDFInfo
- Publication number
- US20140167321A1 US20140167321A1 US13/713,176 US201213713176A US2014167321A1 US 20140167321 A1 US20140167321 A1 US 20140167321A1 US 201213713176 A US201213713176 A US 201213713176A US 2014167321 A1 US2014167321 A1 US 2014167321A1
- Authority
- US
- United States
- Prior art keywords
- mold
- mold portion
- ice
- manifold
- mold apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 17
- 239000004033 plastic Substances 0.000 title description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000003306 harvesting Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 2
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 238000010792 warming Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/22—Construction of moulds; Filling devices for moulds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/04—Producing ice by using stationary moulds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/18—Producing ice of a particular transparency or translucency, e.g. by injecting air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
- F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
- F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
- F25C5/10—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice using hot refrigerant; using fluid heated by refrigerant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/14—Apparatus for shaping or finishing ice pieces, e.g. ice presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
- B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/08—Producing ice by immersing freezing chambers, cylindrical bodies or plates into water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/22—Construction of moulds; Filling devices for moulds
- F25C1/25—Filling devices for moulds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
Definitions
- the present invention generally relates to an ice mold apparatus for making substantially clear ice pieces, and methods of using the same.
- One aspect of the present invention includes an ice producing mold apparatus which has a first mold portion having a top surface and at least one perimeter sidewall extending downwardly therefrom and a second mold portion having a bottom surface and at least one perimeter sidewall extending upwardly therefrom.
- the first mold portion is operably coupled to the second mold portion such that the mold apparatus is operable between an open position and a closed position. In the open position, a bottom surface of the first mold portion is spaced apart from a top surface of the second mold portion. In the closed position, the bottom surface of the first mold portion abuts the top surface of the second mold portion.
- the first mold portion also includes a concave depression disposed on its bottom surface. A reciprocal concave depression is disposed on the top surface of the second mold portion.
- the concave depression of the first mold portion and the reciprocal concave depression of the second mold portion engage each other when the mold apparatus is in the closed position to define a mold cavity adapted to form one or more ice structures therein.
- the mold apparatus further includes an inlet disposed on the first mold portion. The inlet is adapted to provide liquid ingress into the mold cavity.
- a liquid circulating manifold is disposed within the first mold portion and is in fluid communication with an inlet.
- the liquid circulating manifold is adapted to circulate liquid within a body portion of the first mold portion to create a thermal conductivity level of the first mold portion that is lower than a thermal conductivity level associated with the second mold portion.
- the liquid circulating manifold is further adapted to receive a warm liquid medium to heat the first mold portion to help release the one or more ice structures from the mold apparatus in the open position.
- a mold apparatus having a first mold portion including a concave depression and a liquid circulating manifold.
- the mold apparatus further includes a second mold portion having a reciprocal concave depression.
- the first mold portion is pivotally coupled to the second mold portion such that the mold apparatus is operable between an ice forming position and an ice harvesting position.
- the first mold portion comprises a lower thermal conductivity relative to a thermal conductivity of the second mold portion.
- the mold apparatus is assembled to the ice forming position wherein the first mold portion and the second mold portion are abuttingly engaged such that the concave depressions of the first mold portion and the second mold portion align to create a mold cavity. Water is then injected into the mold cavity and the mold apparatus is cooled to form at least one ice structure within the mold cavity. A warm liquid medium is circulated into the liquid circulating manifold to warm the mold apparatus. Finally, the mold apparatus is disassembled into the ice harvesting position and the ice structure is released from the mold apparatus.
- FIG. 1 is a side elevational view of an ice-producing mold in a closed position
- FIG. 2 is a side elevational view of the ice-producing mold of FIG. 1 in an open position
- FIG. 3 is a side elevational view of another embodiment of an ice-producing mold in an open position.
- FIG. 4 is a side elevational view of another embodiment of an ice-producing mold in an open position.
- FIG. 1 generally illustrates an ice-producing mold 10 which includes a first mold portion 20 and a second mold portion 30 .
- the first mold portion 20 is generally rectangular in shape and includes a top surface 22 .
- the top surface 22 typically has at least one perimeter side wall 26 , more commonly two perimeter side walls 26 , which extend downwardly from the top surface 22 .
- the first mold portion 20 of the mold 10 also has a bottom surface 24 which includes a concave depression 28 . This depression 28 is typically formed in a semi-spherical shape and is centrally arranged on the bottom surface 24 .
- the mold 10 further includes has a second portion 30 which is operably coupled to the first mold portion 20 .
- the second mold portion 30 includes a top surface 32 which has at least one, and preferably two, perimeter side walls 36 extending upwardly therefrom. Along with a bottom surface 34 , the top surface 32 and perimeter side walls 36 form a generally rectangular shape of the second mold portion 30 as shown in FIG. 1 .
- the top surface 32 of the second mold portion also includes a concave depression 38 which is typically semi-spherically shaped and reciprocal of the concave depression 28 of the first mold portion 20 .
- the second mold portion 30 also includes a plurality of apertures which receive mounting fasteners 48 in order to mount the second mold portion 30 in an appliance, such as a freezer.
- the bottom surface 34 of the second mold portion is adapted to be in thermal communication with a cooling mechanism 50 , typically an evaporator, in order to cool the mold 10 .
- the mold 10 is operable between a closed position 16 , shown in FIG. 1 , and an open position 18 , shown in FIG. 2 as the first and second mold portions 20 , 30 are generally operably coupled by a hinge member 52 ( FIGS. 3 and 4 ).
- a hinge member 52 FIGS. 3 and 4
- the bottom surface 24 of the first mold portion 20 abuts the top surface 32 of the second mold portion 30 .
- at least one perimeter sidewall 26 of the first mold portion 20 and at least one perimeter sidewall 36 of the second mold portion 30 form a flat planar surface.
- the first mold portion 20 and the second mold portion 30 form a single rectangular mold 10 .
- the mold 10 may also be of any other shape, including but not limited to spherical, cylindrical, cubical, or any other shape one with ordinary skill in the art would use to create specially shaped ice structures. While in the closed position 16 , the concave depression 28 of the first mold portion 20 and the concave depression 38 of the second mold portion 30 are aligned and cooperate to define a mold cavity 40 which is adapted to form one or more ice structures therein. As shown in FIGS. 1-4 , the mold cavity 40 is spherical in shape but may be star-shaped, heart-shaped, rectangular-shaped, triangular-shaped, or any other shape a user would desire.
- first mold portion 20 and the second mold portion 30 may be operably coupled in a pivotal manner by a hinge member 52 .
- one perimeter side wall 26 of the first mold portion 20 is connected with one perimeter side wall 36 of the second mold portion 30 . It is further contemplated that the first mold portion 20 and the second mold portion 30 may be separate pieces that are moveably associated with one another.
- the first mold portion 20 may also include one or more liquid circulating manifolds 54 .
- These manifolds 54 are integrally formed in a body portion of the first mold portion 20 and are in fluid communication with at least one manifold inlet 62 and at least one manifold outlet 64 .
- the manifold inlet 62 is adapted to provide liquid ingress into the at least one manifold 54 of the first mold portion 20 in order to warm the mold 10 .
- the liquid circulating manifolds 54 are arranged adjacent to the concave depression 28 on the first mold portion 20 .
- the manifolds 54 may have a variety of shapes including cylindrical, triangular, or any other shape that would allow for sufficient warming of the first mold portion 20 .
- the manifolds 54 may be of any arrangement which allows bonds formed between an ice structure and the mold 10 to be broken in order to facilitate harvesting of the ice structure from the mold 10 including a plurality or liquid circulating structures 54 disposed adjacent to the concave depression of the first mold portion 20 as shown in FIG. 3 .
- the manifold may also be a single manifold jacket 56 which is disposed adjacent to and generally follows the contours of the concave depression 28 of the first mold portion 20 as shown in FIG. 4 .
- the first mold portion 20 may be comprised of a two-piece system having an upper mold portion 58 and a cavity side portion 60 .
- the upper mold portion 58 of the first mold portion 20 includes the top surface 22 of the first mold portion 20 along with the perimeter side walls 26 .
- the cavity side portion 60 of the first mold portion 20 includes the mold segment disposed between the manifold water jacket 56 and the concave depression 28 .
- the liquid circulating manifold 54 is further adapted to receive a warm liquid medium in order to heat the first mold portion 20 and to release the at least one ice structure from the first portion 20 of the mold 10 while the mold 10 is in the open position 18 .
- the top surface 22 of the first mold portion 20 includes one or more apertures configured to receive an inlet 42 and an outlet 44 .
- the inlet 42 is generally configured to allow liquid to pass through the top surface 22 of the mold 10 and down into the concave depression 28 of the first mold portion 20 .
- the inlet 42 is typically coupled to an appliance or other liquid supplying device. Any excess liquid not frozen during the ice forming process is typically dispelled through the outlet 44 , thereby providing continuous water movement or circulation within the mold cavity 40 during an ice formation process.
- the mold 10 When forming an ice structure, the mold 10 generally begins in the ice forming, or closed position 16 . Water is injected through the inlet 42 of the first mold portion 20 and into the mold cavity 40 and fills the mold cavity 40 . Excess water is typically removed through the outlet 44 by water pressure, but water could also be removed from the mold cavity 40 by any known technique as one with ordinary skill in the art would use to remove excess water. The mold 10 is then cooled by using the evaporator 50 located in thermal communication with the bottom surface 34 of the second mold portion 30 , but could be cooled by any other known technology such as thermoelectric cooling or cold air circulation.
- the first mold portion 20 and the second mold portion 30 of the present invention are configured to have different thermal conductivities.
- the second mold portion 30 is made from a substantially metallic material while the first mold portion 20 is comprised of a substantially polymeric or thermoplastic material. This allows for optimal freezing and releasing of the ice as formed in the mold cavity 40 . Having the cooling device 50 disposed adjacent to the second mold portion 30 , the portion with a higher thermal conductivity, allows the cooling device 50 to be used more efficiently to cool the mold 10 quickly. Having a first mold portion 20 with a lower thermal conductivity, allows for an ice removal process that is less susceptible to dimpling or cracking and allows the first mold portion 20 to be warmed in precise locations needed to efficiently and effectively remove the ice from the mold 10 .
- the mold 10 is opened to an open position 18 .
- the mold 10 can be opened at its hinge member 52 located on the perimeter side wall of each of the first and the second mold portions 26 , 36 , or the first mold portion 20 may be completely separated from the second mold portion 30 .
- the first mold portion 20 while in the open position 18 , is generally angled downward, which allows the formed ice body, or ice structure, to be gravitationally removed from the first mold portion 20 . This also allows the ice structure to eject or release from the first mold portion 20 into an awaiting ice storage container, without interference from the second mold portion 30 .
- warm liquid flows into the manifold inlet 62 in order to warm the plastic first mold portion 20 . This heating effect helps to break any mechanical ice bonds formed between the ice structure and the first mold portion 20 .
- the ice structure is then released down into the storage container.
- the warm water may flow directly into the mold cavity 40 which melts the ice structure a small amount in order to break any mechanical ice bonds formed between the ice structure and the mold 10 to release the ice structure. This method can cause dents or other dimpling in the ice structure and is generally not preferred.
- the warm water may be injected from the manifold inlet 62 into at least one manifold 54 which is disposed within a body portion of the first mold portion 20 . These manifolds 54 are warmed by incoming water, or another thermal fluid, which ultimately warms the mold and breaks the bond between the ice structure and the plastic mold 20 and allows the ice structure to be released into the storage container.
- the first mold portion 20 may include a manifold water jacket 56 which substantially surrounds the entire concave depression 28 of the first mold portion 20 .
- Warm water, or another like warming medium may be injected or otherwise released into this manifold water jacket 56 to warm the mold 10 and allow the bonds to break between the ice structure and the mold 10 .
- the first mold portion 20 of the mold 10 may further include an ejector pin mechanism 46 which extends from the top surface 22 of the first mold portion 20 and into the mold cavity 40 .
- the ejector pin 46 is moved to an extended position within the mold cavity 40 and then applies a force on the formed ice structure to help release the ice structure and break the bond between the ice structure and the mold 10 .
- the formed ice structures are then stored in a storage container where they are kept until they are dispensed or otherwise retrieved by the user.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
Abstract
Description
- The present application is related to, and hereby incorporates by reference, the entire disclosures of the following applications for United States Patents: U.S. patent application Ser. No. ______ entitled “CLEAR ICE SPHERES,” filed on even date herewith (Atty. Docket No. SUB-02168-US-NP); U.S. patent application Ser. No. ______ entitled “MOLDED CLEAR ICE SPHERES,” filed on even date herewith (Atty. Docket No. SUB-02200-US-NP); U.S. patent application Ser. No. ______ entitled “CLEAR ICE HYBRID MOLD,” filed on even date herewith (Atty. Docket No. SUB-03080-US-NP); and U.S. patent application Ser. No. ______ entitled “MOLDED CLEAR ICE SPHERES,” filed on even date herewith (Atty. Docket No. SUB-02200A-US-NP).
- The present invention generally relates to an ice mold apparatus for making substantially clear ice pieces, and methods of using the same.
- One aspect of the present invention includes an ice producing mold apparatus which has a first mold portion having a top surface and at least one perimeter sidewall extending downwardly therefrom and a second mold portion having a bottom surface and at least one perimeter sidewall extending upwardly therefrom. The first mold portion is operably coupled to the second mold portion such that the mold apparatus is operable between an open position and a closed position. In the open position, a bottom surface of the first mold portion is spaced apart from a top surface of the second mold portion. In the closed position, the bottom surface of the first mold portion abuts the top surface of the second mold portion. The first mold portion also includes a concave depression disposed on its bottom surface. A reciprocal concave depression is disposed on the top surface of the second mold portion. The concave depression of the first mold portion and the reciprocal concave depression of the second mold portion engage each other when the mold apparatus is in the closed position to define a mold cavity adapted to form one or more ice structures therein. The mold apparatus further includes an inlet disposed on the first mold portion. The inlet is adapted to provide liquid ingress into the mold cavity. A liquid circulating manifold is disposed within the first mold portion and is in fluid communication with an inlet. The liquid circulating manifold is adapted to circulate liquid within a body portion of the first mold portion to create a thermal conductivity level of the first mold portion that is lower than a thermal conductivity level associated with the second mold portion. The liquid circulating manifold is further adapted to receive a warm liquid medium to heat the first mold portion to help release the one or more ice structures from the mold apparatus in the open position.
- Another aspect of the present invention includes a method of releasing ice structures from a mold apparatus. First, a mold apparatus is provided having a first mold portion including a concave depression and a liquid circulating manifold. The mold apparatus further includes a second mold portion having a reciprocal concave depression. The first mold portion is pivotally coupled to the second mold portion such that the mold apparatus is operable between an ice forming position and an ice harvesting position. In this method, the first mold portion comprises a lower thermal conductivity relative to a thermal conductivity of the second mold portion. The mold apparatus is assembled to the ice forming position wherein the first mold portion and the second mold portion are abuttingly engaged such that the concave depressions of the first mold portion and the second mold portion align to create a mold cavity. Water is then injected into the mold cavity and the mold apparatus is cooled to form at least one ice structure within the mold cavity. A warm liquid medium is circulated into the liquid circulating manifold to warm the mold apparatus. Finally, the mold apparatus is disassembled into the ice harvesting position and the ice structure is released from the mold apparatus.
- These and other features, advantages, and objects of the present invention will be further understood and appreciated by those skilled in the art by reference to the following specification, claims, and appended drawings.
- In the drawings:
-
FIG. 1 is a side elevational view of an ice-producing mold in a closed position; -
FIG. 2 is a side elevational view of the ice-producing mold ofFIG. 1 in an open position; -
FIG. 3 is a side elevational view of another embodiment of an ice-producing mold in an open position; and -
FIG. 4 is a side elevational view of another embodiment of an ice-producing mold in an open position. - For purposes of description herein, the aspects of this disclosure may assume various alternative orientations, except where expressly specified to the contrary. The specific devices and processes illustrated in the attached drawings and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.
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FIG. 1 generally illustrates an ice-producingmold 10 which includes afirst mold portion 20 and asecond mold portion 30. Thefirst mold portion 20 is generally rectangular in shape and includes atop surface 22. Thetop surface 22 typically has at least oneperimeter side wall 26, more commonly twoperimeter side walls 26, which extend downwardly from thetop surface 22. Thefirst mold portion 20 of themold 10 also has abottom surface 24 which includes aconcave depression 28. Thisdepression 28 is typically formed in a semi-spherical shape and is centrally arranged on thebottom surface 24. - The
mold 10 further includes has asecond portion 30 which is operably coupled to thefirst mold portion 20. Thesecond mold portion 30 includes atop surface 32 which has at least one, and preferably two,perimeter side walls 36 extending upwardly therefrom. Along with abottom surface 34, thetop surface 32 andperimeter side walls 36 form a generally rectangular shape of thesecond mold portion 30 as shown inFIG. 1 . Thetop surface 32 of the second mold portion also includes aconcave depression 38 which is typically semi-spherically shaped and reciprocal of theconcave depression 28 of thefirst mold portion 20. Thesecond mold portion 30 also includes a plurality of apertures which receivemounting fasteners 48 in order to mount thesecond mold portion 30 in an appliance, such as a freezer. Thebottom surface 34 of the second mold portion is adapted to be in thermal communication with acooling mechanism 50, typically an evaporator, in order to cool themold 10. - The
mold 10 is operable between a closedposition 16, shown inFIG. 1 , and anopen position 18, shown inFIG. 2 as the first andsecond mold portions FIGS. 3 and 4 ). When themold 10 is in the closedposition 16, thebottom surface 24 of thefirst mold portion 20 abuts thetop surface 32 of thesecond mold portion 30. Also, while in the closedposition 16, at least oneperimeter sidewall 26 of thefirst mold portion 20 and at least oneperimeter sidewall 36 of thesecond mold portion 30 form a flat planar surface. In the closedposition 16, thefirst mold portion 20 and thesecond mold portion 30, form a singlerectangular mold 10. Themold 10 may also be of any other shape, including but not limited to spherical, cylindrical, cubical, or any other shape one with ordinary skill in the art would use to create specially shaped ice structures. While in theclosed position 16, theconcave depression 28 of thefirst mold portion 20 and theconcave depression 38 of thesecond mold portion 30 are aligned and cooperate to define amold cavity 40 which is adapted to form one or more ice structures therein. As shown inFIGS. 1-4 , themold cavity 40 is spherical in shape but may be star-shaped, heart-shaped, rectangular-shaped, triangular-shaped, or any other shape a user would desire. - Referring now to
FIG. 2 , when themold 10 is in anopen position 18, thebottom surface 24 of thefirst mold portion 20 is separated or spaced apart from thetop surface 22 of thesecond mold portion 30. As noted above, thefirst mold portion 20 and thesecond mold portion 30 may be operably coupled in a pivotal manner by ahinge member 52. Typically, oneperimeter side wall 26 of thefirst mold portion 20 is connected with oneperimeter side wall 36 of thesecond mold portion 30. It is further contemplated that thefirst mold portion 20 and thesecond mold portion 30 may be separate pieces that are moveably associated with one another. - Referring now to
FIG. 3 , thefirst mold portion 20 may also include one or more liquid circulatingmanifolds 54. Thesemanifolds 54 are integrally formed in a body portion of thefirst mold portion 20 and are in fluid communication with at least onemanifold inlet 62 and at least onemanifold outlet 64. Themanifold inlet 62 is adapted to provide liquid ingress into the at least onemanifold 54 of thefirst mold portion 20 in order to warm themold 10. Theliquid circulating manifolds 54 are arranged adjacent to theconcave depression 28 on thefirst mold portion 20. Themanifolds 54 may have a variety of shapes including cylindrical, triangular, or any other shape that would allow for sufficient warming of thefirst mold portion 20. Themanifolds 54 may be of any arrangement which allows bonds formed between an ice structure and themold 10 to be broken in order to facilitate harvesting of the ice structure from themold 10 including a plurality or liquid circulatingstructures 54 disposed adjacent to the concave depression of thefirst mold portion 20 as shown inFIG. 3 . The manifold may also be asingle manifold jacket 56 which is disposed adjacent to and generally follows the contours of theconcave depression 28 of thefirst mold portion 20 as shown inFIG. 4 . When the manifold 54 is asingle manifold jacket 56, thefirst mold portion 20 may be comprised of a two-piece system having anupper mold portion 58 and acavity side portion 60. Theupper mold portion 58 of thefirst mold portion 20 includes thetop surface 22 of thefirst mold portion 20 along with theperimeter side walls 26. Thecavity side portion 60 of thefirst mold portion 20 includes the mold segment disposed between themanifold water jacket 56 and theconcave depression 28. Theliquid circulating manifold 54 is further adapted to receive a warm liquid medium in order to heat thefirst mold portion 20 and to release the at least one ice structure from thefirst portion 20 of themold 10 while themold 10 is in theopen position 18. - As shown in
FIGS. 1-4 , thetop surface 22 of thefirst mold portion 20 includes one or more apertures configured to receive aninlet 42 and anoutlet 44. Theinlet 42 is generally configured to allow liquid to pass through thetop surface 22 of themold 10 and down into theconcave depression 28 of thefirst mold portion 20. Theinlet 42 is typically coupled to an appliance or other liquid supplying device. Any excess liquid not frozen during the ice forming process is typically dispelled through theoutlet 44, thereby providing continuous water movement or circulation within themold cavity 40 during an ice formation process. - When forming an ice structure, the
mold 10 generally begins in the ice forming, orclosed position 16. Water is injected through theinlet 42 of thefirst mold portion 20 and into themold cavity 40 and fills themold cavity 40. Excess water is typically removed through theoutlet 44 by water pressure, but water could also be removed from themold cavity 40 by any known technique as one with ordinary skill in the art would use to remove excess water. Themold 10 is then cooled by using theevaporator 50 located in thermal communication with thebottom surface 34 of thesecond mold portion 30, but could be cooled by any other known technology such as thermoelectric cooling or cold air circulation. Thefirst mold portion 20 and thesecond mold portion 30 of the present invention are configured to have different thermal conductivities. Thesecond mold portion 30 is made from a substantially metallic material while thefirst mold portion 20 is comprised of a substantially polymeric or thermoplastic material. This allows for optimal freezing and releasing of the ice as formed in themold cavity 40. Having thecooling device 50 disposed adjacent to thesecond mold portion 30, the portion with a higher thermal conductivity, allows thecooling device 50 to be used more efficiently to cool themold 10 quickly. Having afirst mold portion 20 with a lower thermal conductivity, allows for an ice removal process that is less susceptible to dimpling or cracking and allows thefirst mold portion 20 to be warmed in precise locations needed to efficiently and effectively remove the ice from themold 10. - Once the ice structure is completely formed, the
mold 10 is opened to anopen position 18. Themold 10 can be opened at itshinge member 52 located on the perimeter side wall of each of the first and thesecond mold portions first mold portion 20 may be completely separated from thesecond mold portion 30. Thefirst mold portion 20, while in theopen position 18, is generally angled downward, which allows the formed ice body, or ice structure, to be gravitationally removed from thefirst mold portion 20. This also allows the ice structure to eject or release from thefirst mold portion 20 into an awaiting ice storage container, without interference from thesecond mold portion 30. Once themold 10 is opened, warm liquid flows into themanifold inlet 62 in order to warm the plasticfirst mold portion 20. This heating effect helps to break any mechanical ice bonds formed between the ice structure and thefirst mold portion 20. The ice structure is then released down into the storage container. - The removal of the ice structure may occur in a variety of ways. First, the warm water may flow directly into the
mold cavity 40 which melts the ice structure a small amount in order to break any mechanical ice bonds formed between the ice structure and themold 10 to release the ice structure. This method can cause dents or other dimpling in the ice structure and is generally not preferred. Additionally, the warm water may be injected from themanifold inlet 62 into at least onemanifold 54 which is disposed within a body portion of thefirst mold portion 20. Thesemanifolds 54 are warmed by incoming water, or another thermal fluid, which ultimately warms the mold and breaks the bond between the ice structure and theplastic mold 20 and allows the ice structure to be released into the storage container. Moreover, thefirst mold portion 20 may include amanifold water jacket 56 which substantially surrounds the entireconcave depression 28 of thefirst mold portion 20. Warm water, or another like warming medium, may be injected or otherwise released into thismanifold water jacket 56 to warm themold 10 and allow the bonds to break between the ice structure and themold 10. - The
first mold portion 20 of themold 10 may further include anejector pin mechanism 46 which extends from thetop surface 22 of thefirst mold portion 20 and into themold cavity 40. When the ice structure is ready to be removed from themold 10, theejector pin 46 is moved to an extended position within themold cavity 40 and then applies a force on the formed ice structure to help release the ice structure and break the bond between the ice structure and themold 10. The formed ice structures are then stored in a storage container where they are kept until they are dispensed or otherwise retrieved by the user. - Other variations and modifications can be made to the aforementioned structures and methods without departing from the concepts of the present disclosure. These concepts, and those mentioned earlier, are intended to be covered by the following claims unless the claims by their language expressly state otherwise.
Claims (20)
Priority Applications (2)
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US13/713,176 US9470448B2 (en) | 2012-12-13 | 2012-12-13 | Apparatus to warm plastic side of mold |
US15/280,376 US10605512B2 (en) | 2012-12-13 | 2016-09-29 | Method of warming a mold apparatus |
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US13/713,176 US9470448B2 (en) | 2012-12-13 | 2012-12-13 | Apparatus to warm plastic side of mold |
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US15/280,376 Division US10605512B2 (en) | 2012-12-13 | 2016-09-29 | Method of warming a mold apparatus |
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US15/280,376 Active 2034-02-28 US10605512B2 (en) | 2012-12-13 | 2016-09-29 | Method of warming a mold apparatus |
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